Exponential Growth and Decay Review

Front

Is the equation y = 3(1.2)^x exponential growth or decay?

Back

growth

Front

Which of the following graphs is exponential decay?

Back

Front

In the equation y = 205(0.25)⁴, what is the y - intercept (starting amount)?

Back

205

Front

Back

Front

f(x) = 30(1.5)^x, find f(2)

Back

67.5

Front

Identify the following graph:

exponential decay

,

linear

,

exponential growth

,

absolute value

Back

linear

Front

If the price of gas is $2.35 this week and is said to increase 2% every week, what will the price be in 7 weeks?

Back

$2.70

Front

Population of 530 deer decreasing 4% annually. When will it drop below 350? Equation: y = 530(1 - .04)^x

Back

12 years

Front

A boat is bought for $11,090. The value of the boat depreciates 5% every year. What will the value of the boat be in 10 years?

Back

$6,639.99

Front

Would the following be modeled by exponential growth or exponential decay? A population of bark beetles declining by 7% every year.

Back

exponential decay